Last modified on 22 October 2011, at 12:43

Dichotomous Key/Pinophyta

1: Trees or erect or ascending shrubs, 1 meter or more high.

2: Extant (not extinct)...........................................................................Pinales


2: Produces cones or arils.....................................................................Pinales


2: Late Carboniferous, Dutch-Belgian-German Coal area; long, strap-shaped
leaves (up to 80 cm in length), parallel venation; grew in coastal environments as
swamp plants and in cool temperate forests of Angaraland.......................Cordaitales